69489030 has 128 divisors (see below), whose sum is σ = 195084288. Its totient is φ = 15685632.

The previous prime is 69489029. The next prime is 69489037. The reversal of 69489030 is 3098496.

69489030 = 382² + 383² + ... + 641².

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 69489030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69489037) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 311499 + ... + 311721.

It is an arithmetic number, because the mean of its divisors is an integer number (1524096).

Almost surely, 2^69489030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69489030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97542144).

69489030 is an abundant number, since it is smaller than the sum of its proper divisors (125595258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69489030 is a wasteful number, since it uses less digits than its factorization.

69489030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 69489030 is about 8336.0080374241. The cubic root of 69489030 is about 411.1232928512.

The spelling of 69489030 in words is "sixty-nine million, four hundred eighty-nine thousand, thirty".